Advantage Spot-on Solution for Dogs contains the active ingredient imidacloprid, a fast-acting ectoparasiticide that kills adult fleas by contact and treats biting lice. It is licensed for dogs and puppies aged 8 weeks or older.
When to Use Advantage Spot-on
Veterinarians and SQPs recommend this product to:
Treat existing flea infestations in dogs.
Prevent new flea infestations for up to 4 weeks.
Control biting lice (Trichodectes canis).
Be part of the management of flea-allergy dermatitis (FAD).
How Advantage Spot-on Works
After application onto the skin, imidacloprid spreads across the coat and skin surface. It acts by disrupting the nervous system of fleas and lice, causing rapid paralysis and death, without requiring a bite from the parasite.
Available Strengths & Dosage
Multiple strengths are available based on dog weight:
100 mg for dogs 4-10 kg
250 mg for dogs 10-25 kg
400 mg for dogs 25-40 kg For dogs over 40 kg, two 400 mg pipettes may be used.
Apply once monthly by placing the contents of one pipette onto the skin at the base of the neck (between shoulder blades) for dogs up to 25 kg, or split between multiple spots for larger weights.
Precautions & Storage
For external use only and apply only to undamaged skin.
Do not allow recently treated animals to groom each other until the application site is dry.
Avoid allowing the treated dog to swim or be bathed for at least 48 hours for maximum effect.
Store below 25 °C, protect from light, and keep out of reach of children and other animals.
Imidacloprid is toxic to aquatic organisms — treated dogs should not enter surface water for 48 hours post-application.
Why Buy from Pet Med Direct
We supply only UK-licensed animal health medicines and ensure each order is handled with professional care. Our Advantage Spot-on products come from authorised wholesalers, are securely packaged, and dispatched with full tracking. We support you with expert advice and regulatory compliance.
Frequently Asked Questions
How fast does it act? Most fleas are killed within 24 hours of application. Can I use it on puppies? Yes — suitable for dogs and puppies aged 8 weeks or over, following weight-based dosing. Is a prescription required? No — as an NFA-VPS medicine, it can be supplied by suitably authorised retailers following SQP assessment. What if my dog swims frequently? Swimming or frequent bathing may reduce duration of protection, so monitor and consider re-treatment if necessary. Can I apply it monthly? Yes — apply every 4 weeks to maintain continuous protection against fleas and lice.
Summary
Advantage Spot-on Solution for Dogs offers an easy, monthly application to treat and prevent fleas and biting lice in dogs of various sizes. With fast action, weight-based dosing, and a well-established safety profile, it helps maintain comfort and freedom from ectoparasites. As an NFA-VPS product, it is accessible without a veterinary prescription but must be supplied responsibly.